<?php

namespace App\Controllers;

use App\Traits\ResponseTrait;
use CodeIgniter\Controller;
use App\Models\PatResultModel;

class ResultController extends Controller {
    use ResponseTrait;

    protected $model;

    public function __construct() {
        $this->model = new PatResultModel();
    }

    /**
     * List results with optional filters
     * GET /api/result
     */
    public function index() {
        try {
            $orderID = $this->request->getGet('order_id');
            $patientID = $this->request->getGet('patient_id');

            if ($orderID) {
                $results = $this->model->getByOrder((int)$orderID);
            } elseif ($patientID) {
                $results = $this->model->getByPatient((int)$patientID);
            } else {
                // Get all results with pagination
                $page = (int)($this->request->getGet('page') ?? 1);
                $perPage = (int)($this->request->getGet('per_page') ?? 20);
                
                $results = $this->model
                    ->where('DelDate', null)
                    ->orderBy('ResultID', 'DESC')
                    ->paginate($perPage, 'default', $page);
            }

            return $this->respond([
                'status' => 'success',
                'message' => 'Results retrieved successfully',
                'data' => $results
            ], 200);

        } catch (\Exception $e) {
            log_message('error', 'ResultController::index error: ' . $e->getMessage());
            return $this->respond([
                'status' => 'failed',
                'message' => 'Failed to retrieve results',
                'data' => []
            ], 500);
        }
    }

    /**
     * Get single result
     * GET /api/result/{id}
     */
    public function show($id) {
        try {
            $result = $this->model->getWithRelations((int)$id);

            if (!$result) {
                return $this->respond([
                    'status' => 'failed',
                    'message' => 'Result not found',
                    'data' => []
                ], 404);
            }

            return $this->respond([
                'status' => 'success',
                'message' => 'Result retrieved successfully',
                'data' => $result
            ], 200);

        } catch (\Exception $e) {
            log_message('error', 'ResultController::show error: ' . $e->getMessage());
            return $this->respond([
                'status' => 'failed',
                'message' => 'Failed to retrieve result',
                'data' => []
            ], 500);
        }
    }

    /**
     * Update result with validation
     * PATCH /api/result/{id}
     */
    public function update($id) {
        try {
            $data = $this->request->getJSON(true);
            
            if (empty($data)) {
                return $this->respond([
                    'status' => 'failed',
                    'message' => 'No data provided',
                    'data' => []
                ], 400);
            }

            $result = $this->model->updateWithValidation((int)$id, $data);

            if (!$result['success']) {
                return $this->respond([
                    'status' => 'failed',
                    'message' => $result['message'],
                    'data' => []
                ], 400);
            }

            // Get updated result with relations
            $updatedResult = $this->model->getWithRelations((int)$id);

            return $this->respond([
                'status' => 'success',
                'message' => $result['message'],
                'data' => [
                    'result' => $updatedResult,
                    'flag' => $result['flag']
                ]
            ], 200);

        } catch (\Exception $e) {
            log_message('error', 'ResultController::update error: ' . $e->getMessage());
            return $this->respond([
                'status' => 'failed',
                'message' => 'Failed to update result',
                'data' => []
            ], 500);
        }
    }

    /**
     * Soft delete result
     * DELETE /api/result/{id}
     */
    public function delete($id) {
        try {
            $result = $this->model->find((int)$id);

            if (!$result) {
                return $this->respond([
                    'status' => 'failed',
                    'message' => 'Result not found',
                    'data' => []
                ], 404);
            }

            $deleted = $this->model->softDelete((int)$id);

            if (!$deleted) {
                return $this->respond([
                    'status' => 'failed',
                    'message' => 'Failed to delete result',
                    'data' => []
                ], 500);
            }

            return $this->respond([
                'status' => 'success',
                'message' => 'Result deleted successfully',
                'data' => []
            ], 200);

        } catch (\Exception $e) {
            log_message('error', 'ResultController::delete error: ' . $e->getMessage());
            return $this->respond([
                'status' => 'failed',
                'message' => 'Failed to delete result',
                'data' => []
            ], 500);
        }
    }
}